Question
Examine the function
$f(x) = x^2 \cos(\frac{1}{x})$ for $x \neq 0$
$= 0,$ for $x = 0$
$f(x) = x^2 \cos(\frac{1}{x})$ for $x \neq 0$
$= 0,$ for $x = 0$
✓
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